Blazon: Per pale argent a pall gules and of the last, a Maltese cross of the first, pointé in base barry wavy of the first and azure
Although Ruidera fell into the territory of the Order of Santiago (per a 1237 treaty), it ultimately ended up as the property of the Order of St. John in 1783, which is probably the source for the Maltese cross. There are also many lagoons and wetlands in the area under national protection, which may be the source of the barry wavy point.
Blazon: Per pale argent a cross of Santiago gules and azure a castle triple-towered or on a mount in base proper, surmounted in base by a basin argent of water barry wavy of the field and the last; pointé in base or a galero vert, in the fess point an alms bag, in base a croizer and a patriarchal cross in saltire sable
The archbishop’s regalia in base is presumably a reference to St. Thomas of Villanova, who was born in Fuenllana in 1488, and later canonized in 1658.
Blazon: Sable in the dexter chief a six-spoked wheel and in the sinister chief a horse salient, pointé in base argent a lion rampant gules
The wheel in the arms is probably drawn from those of Michelbach an der Lücke, a former municipality incorporated into the town in 1974. Hengstfeld, incorporated the same year, bore the arms argent a horse salient sable on a base vert; the horse may be a counterchanged reference to this town.
Blazon: Per pale argent on a mount in base gules a castle triple-towered or and of the first a cross of Santiago of the second; pointé vert a crescent pendent of the first
The castle on the mount is likely a reference to the nearby Castle of Alhambra, which was built on a nearby hill for defensive purposes. It dates back to around the 12th century, and was granted to the Order of Santiago in 1214. According to local legend, tunnels that connect the castle to the town.
These are fairly average arms – nice to see they’re not pulling the “mount proper” dodge, but the castle or on argent is on pretty thin ice – with pretty common charges for the area. The really old stories of secret tunnels are just a great bonus.